Re: Diagnosing JACK

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Hi,

On 09/10/2015 08:05, worik wrote:
Friends

I am having trouble with JACK and I have no idea how to start diagnosing
my problems.

I get no sound through it at all today, neither input nor output.
[...]

I have had "pulseaudio" apear in the connections window, I was not
seeing that when the system was working.

Pulsaudio input/output appearing in the connections window without any explicit intervention on your side might be related to enabling D-bus?

Now, if that is the case, how d-bus got enabled without you explicitly doing it or if this could really be the cause of your problem is another matter, but maybe this could be a useful pointer.


Where do I start?  For a start where does JACK put its logs?

Another really trivial yet easily overlooked suggestion is some application (firefox - or even worst flash-plugin, etc.) 'capturing' the audio card and preventing jack to start, but in your case if I understand correctly jack does start?

Finally if there are no evident error messages etc. I know this sounds trivial again but I've fallen to it many times... maybe it's not a jack/OS problem at all: e.g. volume turned down on some hardware knob? Mute button on speakers, sound card etc.? Cable disconnected?

Lorenzo.


I have the correct device selected in the setup tab

Worik

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